Quick-traverse mechanism for winding machines



Feb. 23, 1954 G. c. JOYCE QUICK-TRAVERSE MECHANISM FOR WINDING MACHINES Original Filed Dec. 8, 1951 INVENTOR @LOVER 'CUOYCE BY Fiq.5

Patented Feb. 23, y'1954 QU-ICK-TRAVERSE MECHANISM.kv FOR WINDING MACHINES.

Glover C. Joyce, Worcester,

Mass., assignor to Whitin Machine Works, Whitinsville, Mass., a corporation of Massachusetts l' Original application December 8, 1951, Serial No.

Divided and this application August 30,1952, Serial No. 307,327 v 3 Claims. 1

This application is a division of prior application Serial No. 260,719, filed by me December 8, 1951, `on Bobbin Winding Machine, and relates particularly to the quick-traverse mechanism therein shown and described.

It is the general object of the present invention to provide an improved construction of quick-traverse mechanism which can be operated at high speed with exceptional smoothness, and in which the direction of traverse is reversible Without shock.

A further object is to provide a quick-traverse mechanism in which the loci of successive windings are slightly off-set axially to provide a locklng or binding effect between successive windings. I also provide means for varying the length of traverse, While maintaining one end limit of the traversing swing unchanged.

The invention further relates to arrangements and combinations of parts which will be hereinafter described and more particularly pointed out in the appended claims.

A preferred form of the invention is shown in the drawings, in which Fig. 1 is a plan View of a quick-traverse mechanism embodying my invention;

Fig. 2 is a sectional side elevation, taken along the line 2-2 in Fig. 1;

Fig. 3 is a transverse sectional elevation, taken along the line 3 3 in Fig. 2;

Fig. 4 is a perspective View of an cam;

Fig. L5 is a development of said cam; and

Fig. 6 is a plan View of a guide-plate to be described.

The improved quick-traverse mechanism is shown as associated with a thread guide carriage C. The carriage C comprises a casing |50 having a tubular supporting member |5| which is slidable on a xed shaft or supporting rod 50. The means for shifting the carriage C axially of the shaft 5|) is fully described in the original application and forms no part of the present inventlon.

The casing |50 of the carriage C has a transversely extending bushing |53 (Fig. 3) having a hexagonal opening therethrough to receive a hexagonal and continuously rotated driving shaft |54.

A cam4 |55 (Figs. 3 and 4) having a doublethrow peripheral cam groove |58 is secured on the bushing |53 and is thus rotated with the hexagonal shaft |54. A roll |56 is mounted on the lower end of a stud |51 (Fig. 2) and is received in the peripheral cam groove |58 of the cam operating The stud |51 is secured in one end of an arm which is pivoted on a bushing |6| which is secured to a plate |62 (Fig. 6) by a binding screw |63 and nut |64. The plate |62 is fixed in the carriage casing |50.

The upper end of the stud |51 is mounted for free angular movement in a bearing opening in a lever |66 having a thread guide G mounted in one end thereof.

The lever |66 has an elongated slot |68 to slidably receive a stud |69 which extends through a washer |10 (Fig. 3) and which is threaded in a nut |1| by which the stud |69 is clamped to the plate |62 in a selected position in a slot |12 (Fig. 6).

The stud |69 is preferably provided with a roll |60a (Fig. 2) which moves freely in the slot |68. The nut |1| is slabbed off at opposite sides to t the slot |12 and may be adjusted lengthwise of the slot but cannot rotate therein.

The stud |69 and roll |69a constitute a normally fixed pivot for the thread guide lever |66, but as the stud |69 is adjustable longitudinally in the slot |12, the stud |69 also comprises means to vary the throw of the thread guide G.

As the slot |12 is aligned with the starting position of the thread guide G and lever |66, as shown in full lines in Fig. 1, the thread guide G will always return to the same end limit or starting position, regardless of the adjustment of the pivot stud |69. Consequently, all variations in length of throw of the thread guide take place at the opposite end of the stroke and at the limit toward the tip of the bobbin.

The cam groove |58 in the cam |55 is shown developed in Fig. 5, where it will be noted that the two rises of the cam groove |58 indicated at points |15 and |16 are at slightly different elevations. The elfect of this is to slightly offset successive yarn windings axially relative to each other, so that an improved locking of the windings is thereby attained. The threads of each winding are laid between the threads in the next adjacent winding.

With the thread 'guide carriage and associated mechanism constructed as above described, the thread guide G can be very rapidly oscllated by the hexagonal driving shaft |54 in every longitudinal position of the carriage, and the throw of the thread guide G may be adjusted within Wide limits by changing the setting of the stud |69. Furthermore, in every position of the stud |69, the starting position of the thread guide G Will be at the full line position shown in Fig. 1.

Having thus described my invention and theK advantages thereof, I do not wish to be limited to the details herein disclosed, otherwise than as set forth in the claims, but what I claim is:

l. In a winding machine, a thread guide, `a

shiftable thread guide @arriesga thread guide..

2. The combination in a Winding machine as.

set forth in claim l, in which the means to vary the extent of oscillation of the thread"l guide lever includes a member adjustable along-- a,y guiding;v slot in a, xed plate, which slot is parallel to the center line of the thread guide lever in .msnmdetermined starting position.

3. The combination in a winding machine as set forth in claim l, in which the means to vary the extent of oscillation of the thread guide lever includes a member adjustable along a guiding slot iny afixeduplate, which slows parallel-,to the center line,y of the thread guide. lever-in its predetermined starting position, and in which said adjustable member comprises a stud extending freely through a longitudinal slot in the center l0 lineofthefthreadguide lever. i

GLOVER C. JOYCE.

Reiellellces ('lited' in the file of this patent FOREIGN PATENTS l5 Number Country Date 258,226,vv Germany Mar. 31, 1913 991111.35 France June 11, 1945 

